Not a scientific answer, but because they are immature.
Endorphins reducing stress levels
Answer:
Ineffective airway clearance
Explanation:Ineffective airway clearance is a medical term which means the ineffective or incomplete passage or clearing of the airway around the respiratory tract such as the lungs, nose etc.
If the respiratory tract contain some secretions or blockages it causes the body system to want to make attempts at clearing itself through Coughing etc.
The answer is “short-lived”
Symptoms of depression include having a loss of energy, change in appetite or weight particularly noticeable weight gain or loss, trouble focussing, feelings of hopelessness, and loss of daily interest in activities.
